Local privilege escalation via ALPC race condition
Published Nov 9, 2022 · Updated Aug 10, 2026
A race condition in Windows ALPC allows local users with low privileges to elevate privileges on affected Windows releases. Microsoft identifies ALPC as the affected component but has not disclosed the shared resource, competing operations, or synchronization failure. Exploitation requires local low-privileged access and high-complexity race timing; the resulting privilege level is undisclosed.
Summary
What happened
A race condition in Windows ALPC allows local users with low privileges to elevate privileges on affected Windows releases. Microsoft identifies ALPC as the affected component but has not disclosed the shared resource, competing operations, or synchronization failure. Exploitation requires local low-privileged access and high-complexity race timing; the resulting privilege level is undisclosed.
The record
- CVE
- CVE-2022-41100
- Published
- Nov 9, 2022
- Updated
- Aug 10, 2026
- Vendor
- Microsoft
- Product
- Windows 10 Version 1507
- Classifications
- CWE-362, T1068
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Nov 9, 2022CVE publishedPublication date reported by the CVE source.
- Aug 10, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=10.0.10240.0 <10.0.10240.19567
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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